Section 300 IPC: Murder vs Acquittal - Is it Really Revenge?

Yaar, let's talk about the most iconic Section 300 IPC, the murder one. But what happens when a person is acquitted for murder and then they go on to kill again? See what I'm saying? It's like that one Bollywood movie where the guy gets acquitted for murder in the past and then he's like, 'Main kya kar sakta hoon!' (What can I do?). But seriously, if you're acquitted for murder, does that mean you're free to go murder again? The answer is no, obviously. The issue here is that Section 300 IPC deals with murder, but it doesn't prevent you from being charged with another Section 302 IPC (murder not in the heat of passion) after acquittal. Is it fair to charge someone with murder again after they've been acquitted? I say no, it's like giving them double punishment.